I have yet to get a heater, I know, bad daddy I plan on getting a Hydor Theo, but my question is, is it 'fully' submersible? Can I even put the thermostat part in the water so that everything is under the water line? Any help/info would be greatly appreciated

I have yet to get a heater, I know, bad daddy I plan on getting a Hydor Theo, but my question is, is it 'fully' submersible? Can I even put the thermostat part in the water so that everything is under the water line? Any help/info would be greatly appreciated

We have it in a 2 gallon tank and it work wonderfully. It,s fully submersible.

Both are perfect! Fully submersible (so says the package). I've never had the dial completely submersed, but it will be fine. PS, you will have a very happy betta, it's keeping my 10 at about 78-79, and my 2.5 at 81. Happy happy boys

well my LPS didn't have the hydor theo, so I had to order it online, will be here friday, in the meantime I'm using one of those 'preset' heaters, but I also got a thermometer so I can at least keep an eye on my temps til my Theo gets here. Of course I'll keep the thermometer as well since I know that the thermostat dials are never calibrated properly. I did manager to score a Marina i25 filter though